Event: Div 2 - Weston Trophy

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Opponent	Rating	Result
Ron Keenan	1591	1 - 0
Robert Black	1608	1 - 0
Nripesh Niketan	0	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1200 = (3199 + 400 * (2 - 1)) / 3)